London Heathrow is the World’s Most Internationally Connected Airport


According to the latest data from OAG London Heathrow is the most internationally connected airport in the world for the second straight year, securing the number one spot in OAG’s 2018 International Megahubs Index.

london heathrow airport 2Released today, OAG’s annual report reveals the world’s top 50 most-connected airports for international services, as measured by the highest ratio of scheduled connections to the number of destinations served.

London Heathrow (LHR) scored a Connectivity Index (CI) of 333 – 27 points higher than the second most connected international airport, Chicago O’Hare (ORD; CI: 306). On its busiest day over the past year, there were over 66,000 possible international connections between flights arriving and departing London Heathrow within a six-hour window. British Airways was the dominant carrier at LHR – controlling 52 percent of flights at the airport over the past year.

Top 10 international megahubs for connectivity

  1. London Heathrow, UK
  2. Chicago, USA
  3. Frankfurt, Germany
  4. Amsterdam, Netherlands
  5. Toronto, Canada
  6. Los Angeles, USA
  7. Atlanta, USA
  8. Changi, Singapore
  9. Paris Charles de Gaulle, France
  10. Soekarno-Hatta, Indonesia

The Asia Pacific region dominated in the Low-Cost International Megahub category, securing ten out of the top 25 positions. The top three spots for low-cost connections stayed the same from 2017 to 2018, with Kuala Lumpur Airport (KUL; CI: 135) ranking first, followed by Jakarta (CGK; CI: 92) and Singapore Changi airport (SIN; CI: 91). While Beijing Airport (PEK: CI: 148) is the largest airport in the world in terms of scheduled airline capacity (seats), the airport finished 32nd in International Connectivity.

  • Additional highlights from OAG’s Megabubs International Index include:
    Singapore Changi Airport (SIN; CI: 253) ranks 8th overall on the list of Top 50 International Megahubs, followed by Jakarta Airport (CGK; CI: 249) in 10th place. Kuala Lumpur (KUL: CI: 233), Hong Kong (HKG; CI: 230), Bangkok (BKK; CI: 230) and Icheon (ICN; CI: 216) all made the top 15.
  • The Philippines’ Manila airport (MNL; CI: 146) jumped from 12th to fourth in the Low Cost International Megahub section. Cebu Pacific Airlines operates a third of the flights as the dominant carrier of this hub.
  • Seven out of the top 10 most connected airports had a single carrier operating 40 percent or more of the flights. Delta Air Lines operated 73 percent of flights at Hartsfield–Jackson Atlanta International Airport (7th overall) and Lufthansa operated 63 percent of flights at Frankfurt (3rd overall).

OAG’s Megahubs International Index goes beyond the size of an airport’s route network and measures the number of connections possible within a specific time frame and the relative attractiveness of each airport as a connecting point for scheduled domestic air passengers.

The index harnesses the world’s most comprehensive schedules database to dynamically build connections through a dedicated analytics platform, Connections Analyser, and is further enhanced by OAG’s Minimum Connection Time Exceptions Table. OAG has calculated the total number of all possible connections between inbound and outbound flights within a six-hour window, on the busiest day for global aviation for the 12 months through July 2018.

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